Circular-knitting machine



oct. 21, 1925. 1,558,815

H. E. KATZENMOYER' zcumn Immune lucxnm Enea s'ept. 50,' 1922 s sheets-sneu 2 gamut I Hairy I'. )rd zanger encina.,

l on. 21,1925. S 1,558,815

H. E. KATZENMOYER cIncuL/(R Kulm-Im MACHINE Fled Sept. 30. 1922 y 3 Sheets-Sheet 3 l o t. raises-ia on. ai, i i ldeid.

HARRY 1E. KATZE'Mr/IOYER, 01E RUSTELJMLE, lENlNTSY/VANIA, ASSGNOR OFONEHALF Application tiled September 3U, 1922. Seral'No. 591,517.

To all whom t may conce/rit.' tne needle cylinder 2 from main drive shaft Be it knovvn that l, l-lainrr E. KATZEN 20. 'llhe mechanism thus briefly described 55 Morne., a citizen ot the United States, residis well known and its operationin producing ing at Rosedale, in the county ot' lerks and a tubular knitted stocking will be readily 5 State ci Pennsylvania, have invented cerunderstood.

tain new and usei'nl improvements in Cirln Fig. 12 l have indicated a stocking culardlnitting ll/lachines, oi" which the tot having a leg portion it., heel pocket portion 60 lowing is a specilication. B, toot portion C, and toepocket portion l). My invention relates to circular knitting This is knitted in Wellknovvn manner by a lo machines, and consists in improved mechacircular rotation ot the machine forming nisni adapted to simultaneously knit tullfull circle courses, except in the heel and circle courses ot a main yarn and alternating toe, which are formed as usual by reciproca- 66 part-circle courses of a separate yarn, as tive knitting on the short-hutt needles only. hereinafter ully descriloedin connection with ln forming the toot portion C it is desirable the accompanying drawings, and pointed out to inake the sole portion C thereof ot greater in the appended claim. length than the upper halt or instep por- Fig. 1 showsl in side elevation essential tion, to produce a better lit, and to this end 70 portions of a known type ot knitting inal introduce iii-said sole portion C additional chine, with my improved mechanism applied part-circle courses ot loops oi a separate yarn thereto. v alternating with theusual lull circle courses. Fig. 2 is an end elevation oil' the same nd it is the object of my improvements to looking in the direction ot arrow 2, llig. l. sinniltaneously knit these additional part- T5 F ig. 3 is a plan view with parts omitted. circle courses ot the separate yarn during llig. llis a partial plan vieuT o'l' the sinker the usual circular knitting ol the toot porring with the cover plate removed. tion C.

' liig. 5 is an innei' view ot the cam ring firs stated, the sole portion of the foot C is developed in a straight plane indicating the produced on the short-butt needles, and the 80 paths ot the needle butts. sinkers Within the ring a, in the present ma- Fig. 6 is a diagrammatic view indicating chine, are divided for another purpose, into the arrangements oit the needle cylinder. halt-circle series ot dillerent butts corre- Figs. "l, 8, and 9 indicate the needles emspending with the needle divisions. To knit ployed. additional courses on said short-butt needles 85 Figs. 10, and 11 indicate an additional 1G l provide the cam ring 3, with additional clamp and severing device for the separate knitting cams 25, 2G and 27 lor the latter yarn. y and add cam 28 in the sinker ring i adapt Fig. 12 indicates a stocking produced hy ed to move one ot the series of sinkers my improved mechanism. therein corresponding with said short-butt 90 Referring tothe drawing 1 represents the needles into cooperation with said knitting traine of the machine, 2 the rotated needle cams so as to iorni additional courses ot' cylinder, 3 the cam ring and d the sinker loops on the short-butt needles ot a separate ring of a Well known type of knitting mayarn lied to the latter by a separate guide chine. rl`he needle ring includes the usual 29. rlhe long butt-needles are prevented 95 knitting cams 10, l1, 12, and 13 (see Fig. 5), trom receiving and knitting this separate and dividing cam 111: 'for separating the yarn by an extension 36 of cam 26 which is needlespreparatory to rcciprocative knitting set hack so as to avoid the short butts, but tor the heel and toe portions Vot a stocking, depresses the long butts to pass idly under the needle cylinder having the usual haltthese knitting cams 25, 26, and 2'?, as clearly 100 circle series ot long hutt needles 15 and haltseen in llig. 5. The result of this cani arcircle series ot short hutt needles 16. Yarn rangement is that knitting cains 10, 11, 12

is ted to the needles by a main yarn guide and 13 form continuous full-circle courses o 17 controlled as heretofore troin a pattern loops ot the main yarn during rotation ot drum 18 through guide actuating push hai' the machine, and cams 25, 26 and 27 form 105 19, and rotary movements are imparted to part-circle courses ot loops of the separate yarn on the short but-t needles only, said part circle courses being simultaneously knitted with the full-circle courses and alternat ing with the latter in the sole portion C el? the toot ot' the stocking.

The separate yarn extendino beyond short-butt needles merely tloats across cylinder to be afterwards cut away in well lrnown manner. But to secur ly tie the ends ot the same and produce a better tinish, i interlinit these end portions with be main yarn as in the tollowing manner: l remove two needles at each end of the half circle series of long butt needles l 5 and substitute theretor i termcdiatedength-butt needles 3U having;v long latches, and A rovide stitch 2l" with setback extension 3l which does not all'ect the travel oit the short-butt needles, but elevates said intermediy ee-butt-needles to pass over said cam, their relowering being eliected by dividing cam le preliminary to their entering the main knitting cams l0, l1, l2, and 13. The etect et such travel ot the needles 30 is to actuate them with the short butt needles by means et cams and 2G to engage their hooked ends with the separate yarn ted to the latter. IThe short butt needles term knitted loops et the separate yarn as stated through aetion ot stitch cam 2'?, but the needles 30, raised above the latter by extension 31 thereoli, merely hold the yarn ends ot said separate yarn on their long` latches to be knitted with the main yarn these needles 8O pass through main knitting cams l0, ll, l2, and 13 which latter act upon all the needles in the cylinder.

Dividing` cam l-/l .is operated in the usual manner as heretot'o 'e and is normally in low" ered position, indicated in Fig. 5, during` eircular linilt A dd-itional lnitting,- cams 25, 2t', and u th their e3; ,isions 36 aud 3l are mounted on a slide block Llt), Fig. which is normn `lv retracted by springs il so as to iointl]v i i hdraw said cams `trom the path o: ne neer le but-ts to inoperative position; and the are jointly moved into operative pos' )n tor action on said needles by means hen-matter described. linlter ring cam 28 is normally held in retracted position, in 1 l `:hewn in dotted lines in Fig'.

by spring pressed lever lo pivotally mounted at il@ on ,frame post lll?, the upper end et said lever being); connected to said cam by a rod d8, and its lever end -l9 being actuated as hereinafter described to swing said cam QS into the path ol one series ot siulters to actuate the latter in cooperation with the short buttneedles in formingv loops on the latter as before described.

The guide 2,9 `for the separate yarn is piv` oted at and normally held in raised inoperative position, .seen in dotted lines in Fig. l by a sinking 5l, but is :adapted to be lowered as later described so as to -aring its guide eye 52 into position to teed its yarn to the short butt and intermediate butt nees previously described.

additional part-circle courses ot the te yarn in the sole portion ot the oot lcrin' are preferably introduced im- Viy a ine completion ot the heel ion il, and to autoinatically` accomplish tl is trom the usual pattern drum 18, l prothe latter with a cam GO adapted to sh bar Gl, the latter having an directly contacting with the ln guide 29 to swing latter into tee/ding yupper rounded end oi the s adapted to contact with the lever 55, pivotaliy mounted on at 56, to suing the opposite end ter into contact with slide block lil@ l lat or t e and lcver-end so as to jointly act-nate th to respectively enter the knitting cams and 2l' into the path ot the needle ales, and io move sinker cam 28 into coril`his action y guide to introduce the separate yarn an( toi-m the additional part-circle courses as bei1 re described.

'lo cut olf the end et the separate yarn and held the tree end ot the latter after completion ot the additional part-circle courses u til again required in the next stocking, I preferably provide separate cutting and clamping` devices :t'or the latter in addition to the usual cuttino' and clamping devices :tor the yarn changing guides commonly employed. rlhcse separate cutting and clamping devices comprise a shears "TO and cla-mp Tl actuated by a lever 73, and directaction is imparted to latter by one olt the regular push hars, as bar l),--a change of yarn commonly being' .ma-de before knitting of the toe portion l).

My machine operates in the usual manner in the production of a tubular stocking` out the lotoY A and the making of the' A i after which latter the patum i8 raises push har 6l to operate lever Lever G5 turning on its pivot 66 contacts with slide block l() and with leverend to jointly actuate botlnwslide block il@ carrying the separate knitting` cams 25, 2li and B'? as here-t 'lore described, and lever end oi" lever controls the swing of sinlcor cam 28. dnd push bar 6l through its ei-tensou (52 lowers the separate yarn guide lo bring the eye 52 ot the latter into 1 dinoj position. These movements automatically eti'ected trom the pattern drum 18 cause the formation ot additional part-circle courses ot loops of the separate yarn to be sin'iultaneously .knitted on the short butt needles during the usual torination et toll-circle courses on all the needles `as heretofore described and to tie the ends of said separate yarn by jointly knitting both yarns on needles 30. After completion of the foot portion C With the additional courses in the sole yportion C thereof, the pattern drum 18 releases bar 61 to Withdraw the separate knitting cams, sinker cam 28, and yarn guide 29 from operative position, after which the toe pocket portion D is made in the usual manner.

Modications of the machine above described may be readily devised and I do not desire to limit myself to the specific construction shown, but:

What I claim is:

In a circular knitting machine comprising a circular series of needles, a main yarn guide therefor and main knitting cams for all the needles, an eXtra yarn guide mov able into and out of position for feeding to a partA circle series only of said needles, eX- tra knitting cams for the latter movable into and out of the needle path, a sinker ring and a movable cam therein adapted to additionally actuate the sinkers in cooperation With saidextra knitting cams, a lever mechanism adapted to actuate said extra yarn guide, a separate lever mechanism adapted to actuatef both said ext-ra knittingy cams and sai-d extra sinker ring cam, and a pattern controlled push rod jointly operative upon both said lever mechanisms.

In testimony whereof I aiiX my signature.

HARRY E. KATZENMOYER. 

